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Ilia_Sergeevich [38]

3 years ago

7

A train travels at a constant speed of 75 Mi/h. The function f(x) =75x gives the distance that the train travels in x hours grap

h this function an give it's domain and range

1 answer:

Lisa [10]3 years ago

8 0

I have no idea but I have a test on this tommorow

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Diegi is trying to find the value of x in 5 x=35. He draws a diagram but is not cerntal how to proceed.

inessss [21]

Answer:

The answer is B because it's correct you guessed it right

Step-by-step explanation:

5 0

2 years ago

Jasmine created a scale drawing of her room. She used a scale of 1 in:3 feet. The drawing is 8 inches long by 6 inches wide. Wha

sergiy2304 [10]

Answer:

The area of the room is 432 square feet

Step-by-step explanation:

Let us use the ratio method to solve the question

∵ The scale drawing of the room is 1 inch: 3 feet

→ That means each 1 inch in the drawing represents 3 feet in real

∵ The drawing is 8 inches long by 6 inches wide

∴ The drawing length of the room = 8 inches

∴ The drawing width of the room = 6 inches

→ By using the ratio method

→ inches : feet

→ 1 : 3

→ 8 : L

→ 6 : W

→ By using the cross multiplication

∵ 1 × L = 8 × 3

∴ L = 24

∴ The actual length of the room is 24 feet

∵ 1 × W = 6 × 3

∴ W = 18

∴ The actual width of the room is 18 feet

Use the formula of the area of the rectangle to find the area of the room

∵ Area of rectangle = length × width

∴ Area of the room = 24 × 18

∴ Area of the room = 432 feet²

∴ The area of the room is 432 square feet

8 0

2 years ago

Please help me with this problem! <br> y =<br><br> 37<br> 39<br> 51

nika2105 [10]

y = arctan(8/10)

y = 38.65

y = 39

8 0

2 years ago

Read 2 more answers

What is the total surface area of the object shown below including visible and non visible sides

Olenka [21]

Answer:

scan it plz its really easy if you scan them

8 0

3 years ago

These cylinders are similar. Find the volume of

Basile [38]

Answer:

$V_s=85\ cm^3$

Step-by-step explanation:

Let $V_s\ and\ V_b$ be the volumes of the smaller and bigger cylinder.

The formula for the volume of a cylinder is given by :

$V=\pi r^2 h$

As the two triangles are similar, the cube of their ratio would equal the ratio of their volume i.e.

$\dfrac{V_s}{V_b}=(\dfrac{h_s}{h_b})^3\\\\\dfrac{V_s}{V_b}=(\dfrac{3}{5})^3\\\\\dfrac{V_s}{V_b}=0.216\\\\V_s=393\times 0.216\\\\V_s=84.8\\\\or\\\\V=85\ cm^3$

So, the volume of the smaller cylinder is equal to $85\ cm^3$ .

3 0

2 years ago